Heating apparatus.



PATENTED AUG. 20, 1907.

R. J. SAVAGE. HEATING APPARATUS.

APPLIOATION IILED JULY 2, 19,06.

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PATENTED AUG. 20, 1907. R.'J. SAVAGE. HEATING APPARATUS.

APPLICATION FILED JULY z, 1906.

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UNITED STATES RICHARD JOSEPH SAVAGE, OF CHICAGO, ILLINOIS.

HEATING APPARATUS.

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed July 2, 1906'. Serial No. 324,298.

To all whom it may concern:

Be it. known that I, RICHARD .JosErH SAVAGE, a citizen of the UnitedStates, and a resident of the city of Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inHeating Apparatus for Mixing-Kettles, of which the following is anaccurate specification.

My invention relates to a novel device for the heating of the contentsin mixing kettles used in confectioneries, which device may be used foreither gas or coal fire, as circumstances may require, and consists inthe features of construction and combination of parts hereinafter fullydescribed and claimed.

The accompanying drawings, illustrating my invention, show a fire-boxequipped for gas-fire, the apparatus being so constructed that it can beraised up to the lower outline of the mixing kettle forthe purpose ofbringing the fire pot into close proximity with the same for heating itscontents during the process of mixing, and lowering it subsequently toallow tilting of the kettle for the removal of its contents and forcleaning.

My present invention is an addition to the device forming subject ofLetters Patent No. 499,890, granted to me on June 20, 1893, and whichrelates to improve-- ments in means for operating the stirring device inmixing kettles without interfering with the necessary tilting of thekettle for emptying and cleaning.

In the present invention a heating device has been adapted to the mixingkettle making its operation independent of the use of steam for heatingpurposes by providing other means which may be used in the lattersplace. This is done in order to make the apparatus operative in placeswhere no steam is available, in which case gasor should that be missingalso, coal fire can be successfully used.

The above object is attained by the mechanism illustrated in theaccompanying drawings, in which Figure 1 is a complete side elevation,showing the fire pot in section and the mixing kettle partly in section,Fig. 2, is a front elevation, showing the arrangement for lowering thefire pot; the outline of the apparatus with the fire pot lowered and thekettle in the tilted position is shown in dotted lines, and Fig. 3 is aplan view in which the catch, whereby the carriage is locked in itselevated position, is shown in dotted lines.

Like characters of reference indicate corresponding parts in all thefigures.

In the drawings, A designates the frame in which the mixing kettle B isswingingly suspended.

O is the stirring mechanism, D the fire box in which the required heatis created and E the device by means of which the fire box is raised orlowered when required.

The support A consists of two upright members 1 and 1 which are providedwith journals 2 and 2 in which the mixing kettle B is swinginglymounted. Bracket 3 is bolted to member 1 and is provided with bearing 3.A corresponding bearing 3* is located on top of member 1 and a drivenshaft 4, upon which is mounted a tight and loose pulley 4 and a pinion 4revolves in the said bearings. The stirring device consists of the sameparts which form the subject of the above mentioned Letters Patent andare operated by gear connection be tween gear 5 and pinion 4 Trunnions 6and 6 are provided with ears 6 and are riveted to the outer shell 7 ofthe kettle by means of same. Trunnion 6 carries a locking disk 8outwardly of frame member 1, which contains suitable notches 8, intowhich locking knife 9 fits. The latter is pivoted in lugs 9 with whichbearing 2 is provided and a knob 9 facilitates its locking and unlockingfeature.

The fire pot D consists of an outer shell 10 which may be made of anysuitable material, preferably cast iron, an inner cylindrical shell 10and a fire brick0r any other rcfractorylining 10 Space 10 may be filledwith insulating material to prevent excessive radiation of heat. Thefuel, which is in the form of a gas in the case illustrated, is admittedthrough supply pipe 11, enters chamber 11 and passes into a plurality ofburners 11 where it is ignited in the customary manner. In order toprevent the escape of heat at the top, the fire pot is adjusted directlyunder the kettle, establishing intimate contact with the lower outlineof the latter and cutting off the chance of heat escape in a mostthorough way. The products of combustion escape through exit-pipe 12 anda flexible connection 13 connects the stationary gas line with supplypipe 11.

It will be readily appreciated that instead of gas another form of fuel,such as coal, coke, wood, charcoal, gasolene, alcohol and the like, maybe used, in which case it is only necessary to reconstruct the fire potso that it conforms with the well known requirements of the respectivefuel.

When the material in the kettle has been sufficiently reduced byevaporation, it must be removed, for which purpose the kettle has to betilted. Before that can be done, the "fire pot must be lowered to allowthe kettle to swing free. This is effected by the device E which isshown in Fig. 2. The upper frame, upon which the fire pot rests, isformed of two horizontal members 14 and 14, preferably angle iron. Thesemembers are secured laterally by steel rods 15 and 15. Cross-pieces 16and 16 form the cross distance pieces between members 14 and 14. Each ofthe former is provided with four journals 16 and is rotatably mountedupon the corresponding steel rod with its two upper journals, the sidethrust being taken up by horizontal members 14 and 14. The lowerjournals 16 rotate upon steel rods 17 and 17, and brace straps 18 and 18are loosely fitted to the corresponding rod, being of a length whichcorresponds with that of members 14 and 14. Carriagewheels 19 aremounted to the outer ends of rods 17 and 17 so that the device forms acarriage upon which the the pot D may be rolled into its position underkettle B.

When the fire pot is moved into position, it must be adjusted intointimate contact with kettle B and secured therein. This is effected byoperating lever 20 and link strap 20. The former is rotatably mountedupon rod 17 between journal 16 and longitudinal brace strap 18, whilethe latter is rotatably secured to steel rod 15 and pinioned tooperating lever 20 by means of pin 21. It will now be readily apparentthat the carriage with its fire pot D, can be adjusted intimately tomixing kettle B as shown in Fig. 1 by manipulating operating lever 20accordingly; and this position is maintained by a locking catch 22,which swings around cap screw 23 secured to member 14 and engages lever20 with its notch 23, which latter is shown in Fig. 3. As soon aslocking catch 22 is disengaged with operating lever 20, the carriagecollapses on account of the weight of fire pot D, it assumes theposition shown in dotted lines in Fig. 2 and can then be removed withoutdifiiculty. The kettle may then be tilted and locked in the tiltedposition by engaging locking knife 9 with the corresponding notch oflocking disk 8.

It will be readily appreciated that it is possible to alter theconstruction of the device slightly as may be pot with respect to saidwheels and means for locking the pot in raised position.

2. In a device of the class described the combination with a fire pot oftransverse rods on the bottom thereof, cross pieces journaled on saidrods, an axle journaled on each cross piece, wheels thereon, meansrigidly connecting said axles, a lever pivoted on the rear axle andadapted to raise and lower the pot with respect to said wheels, a linkconnecting said lever with the adjacent cross piece and means forlocking said lever in elevated position.

3. In a device of the class described the combination with a fire pot,of transverse rods journaled beneath the same, cross pieces pivotallysupported on said rods, an axle journaled on each cross piece, wheelsthereon, a lever pivoted on one of said axles and adapted to raise andlower the pot with respect to said wheels, a link connecting' said leverwith one of said rods and a locking catch pivoted adjacent the pot andadapted to engage the lever and hold the pot in elevated position.

4. In a device of the class described the combination with a fire pot,of parallel members on the bottom thereof, transverse rods on saidmembers, cross pieces pivoted on said rods, an axle journaled at thebottom of each cross piece, wheels thereon, a lever pivoted at its lowerend on one of said axles and adapted to raise and lower the pot withrespect to said Wheels, a link connecting the lever with the adjacentrod, and a locking catch pivoted on one of said parallel members andadapted to engage the lever and hold the pot in elevated position.

5. In a device of the class described the combination with a tire pot ofparallel members rigidly engaged on the bottom of said pot, cross piecespivoted thereto, an axle on each cross piece, wheels thereon, side barsconnecting said axles, a lever pivoted on one axle and adapted to raiseand lower the pot with respect to said wheels, a link connected withsaid lever and at the top of the adjacent cross piece, and a lockingcatch pivoted on one of said parallel members and adapted to engage thelever and hold the pot in elevated position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

RICHARD JOSEPH SAVAGE.

Witnesses (I. C. GOOSMANN, R. JACOBSEN.

